A geologist has collected 19 specimens of basaltic rock and 19 specimens of granite. The geologist instructs a laboratory assistant to randomly select 33 of the specimens for analysis. (a) What is the pmf of the number of granite specimens selected for analysis? (Round your probabilities to four decimal places.) P(x) (b) What is the probability that all specimens of one of the two types of rock are selected for analysis? (Round your answer to four decimal places.) (c) What is the probability that the number of granite specimens selected for analysis is within 1 standard deviation of its mean value? (Round your answer to four decimal places.)

Q: How are your grades? In a recent semester at a local university, 400 students enrolled in both…

A: given data  n(total) = 400 n(A in statistics) = 90 n(A in psychology) = 68 n(A in both) = 31

Q: Given P(A) = 0.037, find the probability of the complementary event.

A: Given that, P(A) = 0.037 To find the P(A').

Q: In a large population, 59% of the people have been vaccinated. If 5 people are randomly selected,…

A:

Q: usan asks her neighbor to water a sickly plant while she is on vacation. Without water, the plant…

A: Given that P(dying| without water)=0.8 P(dying| with water)=0.15 P(watered)=90%=0.90 P(No…

Q: You have a bobcat cub. This kind of cat grows to a weight that is N(21,5) where 21 and 5 are in…

A: We want to find the probability by using standard normal distribution table.

Q: A test has three parts. Part A consists of nine true-false questions, part B consists of three…

A:

Q: QUESTION 6 Tracy plays college soccer. She makes a goal 67% of the time she shoots. Tracy is going…

A: “Since you have posted multiple questions with multiple sub parts, we will provide the solution only…

Q: Occasionally an airline will lose a bag. A small airline has found it loses an average of 6.2 bags…

A: In this case, each considered bag has the only options of "being lost" (defined as success) or "not…

Q: When tossing two fair coins, the probability of getting two tails P(TT)=1/4 What is the probability…

A:

Q: The owner of The Smoke House found that 900 people bought hamburgers as follows: Kind of Burger…

A: We have Frequency distribution tabel  Kind of burger  Frequency  Miniburger 100 Burger  290…

Q: Emily has $10000 to invest in Apple stock. In the next month, the stock has a 30% chance of gaining…

A: Total amount for investment = $10000.The probability distribution for the provided data is:

Q: Find the probability of the indicated event if ​P(E)=0.25 and ​P(F)=0.55. Find​ P(E and​ F) if​ P(E…

A: Here we need to find P(E and F).

Q: In a large population, 61% of the people have been vaccinated. If 5 people are randomly selected,…

A: From the given information, Sample size (n) = 5, Probability of success (p) = 0.61.

Q: A geologist has collected 18 specimens of basaltic rock and 18 specimens of granite. The geologist…

A:

Q: A certain insecticide kills 50% of all insects in laboratory experiments. A sample of 7 insects is…

A: The objective of this question is to find the probability that exactly 4 out of 7 insects will…

Q: The table at the bottom of the page lists the number of  passengers (according to class of ticket)…

A: Children   Women   Men   Totals     On Survived On Survived On  Survived On Survived First…

Q: The odds against chip beating his friend in a round of golf are 3:1. Find the probability that chip…

A: The objective of the question is to find the probability that Chip will lose a round of golf given…

Q: According to a recent survey, the probability that the driver in a fatal vehicle accident is female…

A:

Q: The proportion of pure gold in a certain metal sample has a bet distribution with a = 3 and B = 1.…

A: the probability that one of these samples will have more than 50% pure gold Let X be proportion of…

Q: The accompanying table shows the numbers of male and female students in a particular country who…

A: The table shows the number of male and female students in a particular country who received…

Q: The pass rate in Math146 at GRC is only 30% per quarter. 8 students are taking Math146 this quarter.…

A:

Q: Given P(A) = 0.372, find the probability of the complementary event.

A:

Q: Find the probability of the indicated event if ​P(E)=0.25 and P(F)=0.45.

A: From the given information, ​P(E)=0.25 and P(F)=0.45 P(E and​F)=0.10.

Q: Chase buys a bag of cookies that contains 9 chocolate chip cookies, 7 peanut butter cookies, 4 sugar…

A: Here are 9 chocolate chip cookies, 7 peanut butter cookies, 4 sugar butter cookies and 9 oatmeal…

Q: Find the probability of the indicated event if ​P(E)=0.35 and ​P(F)=0.45. Find​ P(E or​ F) if​ P(E…

A: Given that p(E)=0.35

Q: Find the probability of the indicated event if P(E)= 0.25 and P(F) = 0.35. Find P(E or F) if P(E and…

A: Addition rule will applied here